I have a Hisense Roku tv and whenever I try to use the apps and inputs part of it the selector just immediately goes to the ad on the far right, I’ve reset the roku and it doesn’t fix it. My roku updated last night and I think that’s the cause
I had this same problem. I fixed it by restarting the device.
Settings > System > Power > System Restart.
EDIT: Nevermind it stopped working again.
Just had it happen to mine, Roku Ultra 4802X SW Version 14.0.4 Build 12221. tried reset and also disconnecting power for 2 mins both did nothing.
Solution that worked for me, Remove "All things Food" Item from Home Screen.
Settings -> Home Screen -> <Item> -> Hide
The cursor now works properly once again and I'm able to navigate and highlight all the menu items once again.
I did NOT install any Food item to display on my Home Screen, it just appeared, likely a software push from Roku that was not thoroughly tested before being deployed to users!